CN115087310B

CN115087310B - High-efficiency shell heat dissipation device and domain controller host

Info

Publication number: CN115087310B
Application number: CN202210683291.3A
Authority: CN
Inventors: 宁立旅; 刘成武
Original assignee: Yuanfeng Technology Co Ltd
Current assignee: Yuanfeng Technology Co Ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2023-03-24
Anticipated expiration: 2042-06-16
Also published as: CN115087310A

Abstract

The invention discloses a high-efficiency shell heat dissipation device which comprises a heat-conducting first shell, a plurality of heat dissipation fins which are convexly arranged on the outer side of the first shell and are arranged at intervals, a fan assembly arranged on the first shell, and a fan cover covering the fan assembly, wherein the fan cover extends outwards to form an air channel cover plate, a heat dissipation channel communicated with an air suction area is formed between the air channel cover plate and the heat dissipation fins, a plurality of air suction holes and an air guide channel communicated with the air suction holes are formed in the air channel cover plate, and air is guided into the heat dissipation channel from the outside along the horizontal outward direction by the air guide channel. Compared with the prior art, the fan cover extends outwards to form the air duct cover plate so as to accelerate the air flowing speed, and the air suction hole for supplementing air and the air guide channel which enables the supplemented air to extend outwards along the direction of the heat dissipation airflow are formed on the air duct cover plate, so that the heat dissipation efficiency of the whole heat dissipation structure outside the first shell is enhanced. The invention also discloses a domain controller host.

Description

High-efficiency shell heat dissipation device and domain controller host

Technical Field

The present invention relates to a heat dissipation device, and more particularly to a high efficiency heat dissipation device for a housing and a host of a domain controller.

Background

Due to the fact that electronic and electric appliances of the whole vehicle are increasingly complex, dozens or even hundreds of ECUs are needed to control the whole vehicle, and the ECUs are staggered in an intricate mode, so that not only is the wiring harness design very complex, but also logic control is very mixed, and the traditional distributed architecture cannot meet the increasing computing requirements.

With the development of vehicle-mounted electronics in these years, high-performance MCUs are used in particular. The vehicle-mounted electronic appliance mainly forms the architecture of a functional "Domain", namely the architecture of Domain. The typical electronic and electric architecture of the whole vehicle is divided into 5 main domains of a power assembly, chassis control, vehicle body control, ADAS and entertainment system. Each Domain has a main high-performance ECU (that is, domain Controller) responsible for handling intra-Domain functional processing and forwarding. The interior of the domain generally uses a low-speed bus, and the domains are interconnected by using a high-speed bus or a relatively large number of vehicle-mounted Ethernet networks.

Compared with a traditional controller, the domain controller needs more high-power ICs and interfaces, and along with the rapid development of the intelligent cabin in the forward multi-functionalization direction of the car machine industry, a mainstream platform is a high-power-consumption platform, the requirement on the heat dissipation performance of a host is higher, the compatibility is better, and the requirement on the volume and the weight is smaller. Therefore, a heat dissipation fan is generally installed on the heat dissipation housing of the domain controller host. Referring to chinese patent CN202023250293, a heat dissipation device for electronic equipment is disclosed, in which a plurality of heat dissipation columns and heat dissipation fins are formed outside a housing, and a heat dissipation fan is installed in the middle of the housing, and when the heat dissipation device works, the heat dissipation fan sucks wind to blow the wind from the middle to the periphery.

Therefore, a heat dissipation device capable of solving the above problems is urgently needed.

Disclosure of Invention

The invention aims to provide a high-efficiency shell heat dissipation device and a domain controller host.

In order to achieve the purpose, the invention discloses a high-efficiency shell heat dissipation device which comprises a heat-conducting first shell, a plurality of heat dissipation fins which are convexly arranged on the outer side of the first shell and are arranged at intervals, a fan assembly and a fan cover, wherein the fan assembly is arranged in a fan installation area on the outer side of the first shell and is used for rotatably sucking external air into an air suction area below the fan installation area, the fan cover covers the fan assembly, the fan cover extends outwards along the horizontal direction to form an air duct cover plate, a plurality of heat dissipation fins are arranged below the air duct cover plate, a heat dissipation channel communicated with the air suction area is formed between the air duct cover plate and the heat dissipation fins, a plurality of air suction holes and an air guide channel communicated with the air suction holes are formed in the air duct cover plate, and the air guide channel inclines downwards or bends and extends from one end close to the fan installation area to the other end far away from the fan installation area so as to guide the air outside the air suction holes into the heat dissipation channel.

Compared with the prior art, the fan cover extends outwards to form the air duct cover plate so as to accelerate the air flowing speed, and the air suction hole for supplementing air and the air guide channel which enables the supplemented air to extend outwards along the direction of the heat dissipation airflow are formed on the air duct cover plate, so that the heat dissipation efficiency of the whole heat dissipation structure outside the first shell is enhanced.

Preferably, the fan cover extends to the periphery to form an air duct cover plate, and at least one air duct cover plate extends to the edge of the first casing.

Preferably, the air duct cover plate is provided with an air guiding sheet at a position corresponding to the air suction hole, the air guiding sheet includes a first end close to the fan installation area and a second end far away from the fan installation area, the first end is connected to or integrally formed at a first edge of the air suction hole close to the fan installation area, and the air guiding sheet is gradually bent or inclined downwards from the first end to the second end to form the air guiding channel on the upper surface of the air guiding sheet.

Specifically, the lower surface of the air guide sheet forms an arc-shaped air guide surface for guiding air outwards.

More specifically, the air guiding sheet further comprises two opposite side edges connected with the first end and the second end, the two side edges extend upwards to form an air guiding side plate connected with the air duct cover plate, and two sides of the air guiding channel are closed to prevent air from flowing out from the air guiding channel to the air suction hole.

More specifically, the air suction hole is further provided with a third edge opposite to the first edge and far away from the fan installation area, and two oppositely arranged second edges connected with the first edge and the second edge, and the upper edges of the two air guide side plates are respectively connected with the two second edges or integrally formed.

More specifically, the air suction hole is rectangular or trapezoidal. When the air suction hole is trapezoidal, the third edge is shorter than the first edge, so that certain acceleration force is generated when air flows in, and the suction force is larger after the air enters the heat dissipation channel.

Preferably, the air suction hole further has a third edge opposite to the first edge and far away from the fan installation area, a distance is formed between a second end of the air guiding sheet and a projection of the third edge of the air suction hole in the horizontal direction, and an outlet of the air guiding channel is formed between the second end of the air guiding sheet and the lower side of the third edge.

Preferably, the upper surface of the air guiding sheet is arc-shaped, the curvature of the upper surface of the air guiding sheet decreases from the first end to the second end, and the second end of the air guiding sheet horizontally extends towards the direction far away from the air suction area.

Preferably, the outer side surface of the first housing is provided with a plurality of heat dissipation fins in the fan mounting area, a space is formed between the fan cover and the heat dissipation fins to form an air suction area, a space is formed between the air duct cover plate and the heat dissipation fins to form an air supplement area, the fan cover is provided with a plurality of air inlets for rotatably sucking air to the air suction area through the fan assembly via the air inlets, and the height of the heat dissipation fins in the fan mounting area is lower than that of the heat dissipation fins at the air duct cover plate.

Preferably, the fan assembly is hung on the fan cover through a rubber member, and the fan cover is fixed on the first casing, so that a distance is formed between the fan assembly and the first casing, and the fan assembly is not in contact with the first casing. Wherein fan unit hangs on the fan covers, then is fixed in first casing with the fan cover on, fan unit and first casing contactless pass through the rubber spare contact with the fan cover, effectively reduced the fan unit action the time because with the fan cover, casing between the noise that relative vibration produced. Moreover, with fan unit and rubber spare block, rubber spare and fan block, do not carry out the fix with screw, and fan unit does not also carry out direct screw with the casing, effectively reduces the number of screw installation.

Specifically, a plurality of installation parts for installing the fan assembly are formed on the fan cover, the lower half part of the rubber piece is connected with the fan assembly in a clamping mode, and the upper half part of the rubber piece is connected with the installation parts in a clamping mode, so that the fan assembly is hung on the fan cover.

More specifically, the rubber part is columnar, the installation part is an installation hole formed in the fan cover, and a first clamping head protruding out of a column body of the rubber part and clamped with the installation hole is arranged at the top end of the rubber part. The rubber piece fills the first clamping head into the mounting hole from the lower part through the characteristic that the rubber piece has elasticity and extrudes out, so that the first clamping head penetrates through the mounting hole and is clamped with the mounting hole, and the first clamping head is hung on the fan cover through the mounting hole.

More specifically, the rubber part is columnar, and the bottom end of the rubber part is provided with a second clamping head which is convexly arranged on a column body of the rubber part and is clamped with the fan component; the fan assembly comprises a fan installation frame and a fan installed on the fan installation frame, a clamping hole matched with the rubber piece column body is formed in the inner side wall of the frame body of the fan installation frame, an inlet with the width smaller than the aperture of the clamping hole is formed in the inner side wall of the fan installation frame, and the second clamping head is clamped with the bottom of the fan installation frame.

Specifically, the fixing portion is a fixing hole penetrating through the fan cover, an installation column protrudes from the outer side of the first casing, a screw hole corresponding to the fixing hole is formed in the installation column, and a screw sequentially penetrates through the fixing hole and is in threaded connection with the screw hole, so that the fan cover is fixed on the first casing.

Preferably, the heat dissipation fin is a heat dissipation column, and in the fan installation area, the top end of the heat dissipation column is gradually reduced to be in a cone shape, a table shape or an arc shape, so as to form an air guide structure.

Preferably, the heat dissipation fin is a solid heat dissipation post, at least one set of heat dissipation holes transversely penetrating through the heat dissipation post are formed in the position, away from the top, of the side wall of the heat dissipation post, the at least one set of heat dissipation holes comprise a first heat dissipation hole and a second heat dissipation hole which transversely penetrate through the heat dissipation post along different directions, and the middles of the first heat dissipation hole and the second heat dissipation hole are intersected and communicated together; when the heat dissipation holes are provided with a plurality of groups, the plurality of groups of heat dissipation holes are arranged along the longitudinal interval of the heat dissipation column, and in the plurality of groups of heat dissipation holes, the penetrating directions of the first heat dissipation holes are the same or different, and the penetrating directions of the second heat dissipation holes are the same or different.

Specifically, the penetrating directions of the first heat dissipation hole and the second heat dissipation hole are right angles, and the column body of the heat dissipation column is cylindrical or prismatic.

Preferably, a heat pipe is embedded in an outer side surface of the first housing, the heat pipe is a hollow pipe, a capillary porous structure for adsorbing a heat conducting medium is arranged in the hollow pipe, and the heat pipe includes an evaporation portion located in the fan installation area and a condensation portion located in the heat pipe and far away from the fan installation area.

Specifically, the cross section of the heat pipe is T-shaped, and a transverse portion of the T-shape of the heat pipe is exposed outside the first housing to perform heat exchange with the outside.

Specifically, the fan installation area is located at a middle position of the first housing, the condensation part of the heat conduction pipe is located at two ends of the heat conduction pipe, and the evaporation part of the heat conduction pipe is located at the middle of the heat conduction pipe and corresponds to the fan installation area.

Specifically, the heat pipe is along its horizontal direction for a direction of orientation bending and make its centre evaporation portion is the arc, it is a plurality of that first casing has outward the heat pipe, and is a plurality of the heat pipe level is laid on the first casing and around fan installation area evenly sets up.

The invention also discloses a domain controller host of the vehicle-mounted intelligent cabin, which comprises a heat dissipation shell, a heat dissipation fan and a multimedia main body arranged in the heat dissipation shell, wherein the heat dissipation shell comprises a first shell, the heat dissipation fan comprises a fan component and a fan cover, and the heat dissipation fan is arranged on the heat dissipation shell to form the high-efficiency shell heat dissipation device.

Drawings

Fig. 1 is a perspective view of a domain controller host of the present invention.

FIG. 2 is an exploded view of the domain controller host of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is an enlarged view of a portion B in fig. 2.

Fig. 5 is a partially enlarged view of fig. 2.

FIG. 6 is a top view of the domain controller host of the present invention.

Fig. 7 is a sectional view taken along line C-C of fig. 6.

Fig. 8 is an enlarged view of a portion D in fig. 7.

Fig. 9 is an enlarged view of a portion E in fig. 7.

Fig. 10 is a bottom surface structure view of the fan cover and the fan cover plate of the present invention.

Fig. 11 is a perspective view of a host computer of a domain controller according to a second embodiment of the present invention with a fan cover and a fan assembly removed.

Fig. 12 is a top view of a domain controller host with a fan cover and fan assembly removed in accordance with a second embodiment of the present invention.

Fig. 13 is a partially enlarged view of a sectional view of a domain controller host according to a second embodiment of the present invention.

Detailed Description

In order to explain the technical contents, structural features, objects and effects of the present invention in detail, the following description is made in conjunction with the embodiments and the accompanying drawings.

Referring to fig. 1 and 2, the present invention discloses a domain controller host 100, which includes a heat dissipation case 10, a heat dissipation fan, and a multimedia main body 20 installed in the heat dissipation case 10. The heat dissipation fan includes a fan assembly 41 and a fan cover 42, the heat dissipation housing 10 includes a heat conductive first housing 11, the fan assembly 41 is mounted on an outer side 111 of the first housing 11, and the fan cover 42 covers the fan assembly 41. In this embodiment, the first casing 11 is an aluminum casing, but the first casing 11 may be another heat-conducting casing.

Referring to fig. 1 to 10, a plurality of heat dissipation fins 32 are protruded from an outer side surface of the first housing 11, and the fan assembly 41 is mounted on a fan mounting area 102 outside the first housing 11, and is configured to rotationally suck external air into an air suction area (an area below the fan assembly 41) below the fan mounting area 102, blow the air from the air suction area to the periphery, and flow outward along the outer side surface of the first housing 11. The fan cover 42 covers the fan assembly 41, the fan cover 42 extends outwards along the horizontal direction to form an air duct cover plate 44, the plurality of heat dissipation fins 32 are arranged below the air duct cover plate 44, a heat dissipation channel 442 communicated with the air suction area is formed between the air duct cover plate 44 and the heat dissipation fins 32, the air duct cover plate 44 is provided with a plurality of air suction holes 441 and an air guide channel 40 communicated with the air suction holes 441, and the air guide channel 40 inclines downwards or bends and extends from one end close to the fan installation area 102 to the other end far away from the fan installation area 102 so as to guide air outside the air suction holes 441 into the heat dissipation channel 442. Wherein the heat dissipation fins 32 are located around the fan installation area 102.

The fan cover 42 extends to the periphery to form an air duct cover plate 44, and at least one air duct cover plate 44 extends to the edge of the first housing 11. In this embodiment, the air duct cover 44 surrounds the fan cover 42 to form an integrally formed plate covering most of the outer side 111 of the first housing 11.

Preferably, the air duct cover plate 44 is provided with an air guiding sheet 50 at a position corresponding to the air suction hole 441, the air guiding sheet 50 includes a first end close to the fan installation region 102 and a second end far away from the fan installation region 102, the first end is connected to or integrally formed at a first edge of the air suction hole 441 close to the fan installation region 102, the air guiding sheet 50 is gradually bent or inclined downwards from the first end to the second end to form the air guiding channel 40 on the upper surface of the air guiding sheet 50, one end of the air guiding channel 40 is the air suction hole 441 through which air enters, and the other end is an outlet 443 (communicated with the heat dissipation channel 442) through which air flows out.

Specifically, the lower surface of the air guide plate 50 forms an arc-shaped guide surface 501 for guiding air outward.

More specifically, the air guiding sheet 50 further includes two opposite side edges connecting the first end and the second end, the two side edges extend upwards to form an air guiding side plate 51 connected to the air duct cover plate 44, and two sides of the air guiding channel 40 are closed to prevent air from flowing out from the air guiding channel 40 to the air suction hole 441. In this embodiment, the air guide sheet 50 and the air guide side wall 51 are formed by punching the duct cover 44 by the punching mechanism, and are formed as an integral structure.

More specifically, the air suction hole 441 further has a third edge opposite to the first edge and far away from the fan installation area 102, and two oppositely disposed second edges connecting the first edge and the second edge, and the upper edges of the two air guide side plates 51 are respectively connected to or integrally formed with the two second edges.

In this embodiment, the air suction hole 441 is rectangular. Of course, the air suction hole 441 may have a trapezoidal shape. When the air suction hole 441 is trapezoidal, the third edge is shorter than the first edge, so that a certain acceleration force is provided when air flows in, and the suction force is larger after the air enters the heat dissipation channel 442.

Referring to fig. 6, the air suction hole 441 further has a third edge opposite to the first edge and far from the fan installation area 102, a projection of the second end of the air guiding sheet 50 and the third edge of the air suction hole 441 in the horizontal direction has a distance, and the second end and the third edge of the air guiding sheet 50 form an outlet of the air guiding channel 40 in the up-down direction.

Referring to fig. 9, the upper surface of the wind-guiding plate 50 is arc-shaped, the curvature of the wind-guiding plate decreases from the first end to the second end, and the second end of the wind-guiding plate 50 extends horizontally in a direction away from the wind-absorbing area.

Referring to fig. 2 and 3, the outer side surface of the first housing 11 is provided with a plurality of

heat dissipation fins

31 and 33 in the fan installation region 102, and referring to fig. 7 and 8, a space is formed between the fan cover 42 and the

heat dissipation fins

31 and 33 to form a suction region. Referring to fig. 7 and 9, a distance is provided between the air duct cover plate 44 and the heat dissipation fins 32 to form an air supplement region, a plurality of air inlets 421 are formed on the fan cover 42 to rotatably suck air to the air suction region through the air inlets 421 by the fan assembly 41, and the heights of the

heat dissipation fins

31 and 33 of the fan installation region 102 are lower than the height of the heat dissipation fins 32 at the air duct cover plate 44.

Referring to fig. 5, 7 and 8, the fan assembly 41 is hung on the fan cover 42 through a rubber 43, the fan cover 42 is fixed on the first housing 11, and the fan assembly 41 and the first housing 11 have a distance, and the fan assembly 41 and the first housing 11 are not in contact. The fan assembly 41 is hung on the fan cover 42, then the fan cover 42 is fixed on the first shell 11, the fan assembly 41 is not in contact with the first shell 11 and is in contact with the fan cover 42 through the rubber piece 43, and noises generated by relative vibration between the fan assembly 41 and the fan cover 42 and between the fan assembly 41 and the first shell 11 and mutual impact between screws and metal pieces are effectively reduced. Furthermore, the fan assembly 41 is engaged with the rubber piece 43, the rubber piece 43 is engaged with the fan, screw fixation is not performed, and the fan assembly 41 and the first housing 11 are not directly screwed, so that the number of screw installation is effectively reduced.

Referring to fig. 5, the fan cover 42 is formed with a plurality of mounting portions 422 for mounting the fan assembly 41 and a plurality of fixing portions 423 fixed to the first housing 11, a lower half portion of the rubber 43 is engaged with the fan assembly 41, an upper half portion of the rubber 43 is engaged with the mounting portions 422 to hang the fan assembly 41 on the fan cover 42, and the fan cover 42 is fixed to the first housing 11 by the fixing portions 423 to provide a space between the fan assembly 41 and the first housing 11 (as shown in fig. 7 and 8).

Specifically, the mounting portions 422 are at least three and are disposed around the center of the fan assembly 41. In this embodiment, there are four mounting portions 422.

Referring to fig. 5 and 8, the rubber member 43 is in a cylindrical shape, the mounting portion 422 is a mounting hole 422 opened in the fan cover 42, and a first engaging head 431 protruding from a cylindrical body of the rubber member 43 and engaging with the mounting hole 422 is disposed at a top end of the rubber member 43. The mounting hole 422 is a mounting hole without a notch on a side portion, the rubber member 43 pushes the first engaging head 431 into the mounting hole 422 from below and extrudes the first engaging head 431 out through the elastic characteristic of the rubber member, so that the first engaging head 431 passes through the mounting hole 422 and is engaged with the mounting hole 422, and the first engaging head 431 is hung on the fan cover 42 through the mounting hole 422.

With reference to fig. 5 and 8, the rubber member 43 is in a column shape, and a second engaging head 432 protruding from a shaft of the rubber member 43 and engaging with the fan assembly 41 is disposed at a bottom end of the rubber member 43. The fan assembly 41 includes a fan mounting frame 411 and a fan 412 mounted on the fan mounting frame 411, an engaging hole 413 for engaging with a column of the rubber member 43 is formed in an inner side wall of the frame of the fan mounting frame 411, an inlet having a width smaller than an aperture of the engaging hole 413 is formed in a side wall of the engaging hole 413 near a center of the fan mounting frame 411, and the second engaging head 432 is engaged with a bottom of the fan mounting frame 411. Of course, when the rubber 43 is attached, the second engaging head 432 of the rubber 43 may be inserted into the attachment hole 422 from above so that the first engaging head 431 engages with the attachment hole 422.

Referring to fig. 5 and 8, the fixing portion 423 is a fixing hole 423 penetrating through the fan cover 42, an installation post 103 corresponding to the fixing hole 423 protrudes from the outside of the first housing, a screw hole 104 corresponding to the fixing hole 423 is disposed on the installation post 103, and a screw 45 sequentially penetrates through the fixing hole 423 and is in threaded connection with the screw hole 104 to fix the fan cover 42 on the first housing 11. At least one group of heat dissipation holes transversely penetrating through the mounting column 103 are formed in the side wall of the mounting column 103, the at least one group of heat dissipation holes comprise a first heat dissipation hole 301 and a second heat dissipation hole 302 which transversely penetrate through the heat dissipation column along different directions, and the middles of the first heat dissipation hole 301 and the second heat dissipation hole 302 are intersected and communicated together. In this embodiment, the first heat dissipation hole 301 and the second heat dissipation hole 302 intersect at the center of the mounting post 103. In this embodiment, three sets of heat dissipation holes are disposed on the mounting post 103. In this embodiment, the fixing holes 423 are 8 and are disposed around the center of the fan assembly 41. Of course, the number of the fixing holes 423 may be 3 or more.

Referring to fig. 3 and 4, the

heat dissipation fins

31, 32, and 33 are heat dissipation posts 31, 32, and 33, the heat dissipation posts 31 and 33 are disposed below the fan mounting area 102, and the heat dissipation posts 32 are disposed around the fan mounting area 102 and under the air duct cover 44. The fan assembly 41 is installed in the fan installation area 102 and has a distance with the

heat dissipation fins

31 and 33 in the fan installation area 102, the fan cover 42 is provided with a plurality of air suction ports 421, and the fan assembly 41 rotationally sucks external air into the air suction area and enables the air to enter between the

heat dissipation fins

31 and 33 from the air suction area.

The

heat dissipation fins

31, 32, and 33 are integrally formed on the outer surface 111 of the first housing 11. The height of the heat dissipation fins 31 of the fan installation region 102 is lower than the height of the

heat dissipation fins

31, 32, 33 around the fan installation region 102, and the gaps between the

heat dissipation fins

31, 32, 33 communicate with the fan installation region 102.

Specifically, the heat dissipation fin 31 is a heat dissipation column, and the top end of at least a part of the heat dissipation columns 31 in the fan installation area 102 is gradually reduced to be in a cone shape, a frustum shape, a circular truncated cone shape or a spherical shape (in this embodiment, the frustum shape), so as to guide air from the top end of the heat dissipation column 31 to a position between adjacent heat dissipation columns 31.

Specifically,

heat dissipation fin

31, 32, 33 are

heat dissipation post

31, 32, 33,

heat dissipation post

31, 32, 33 are solid columnar body, at least a set of louvre that transversely runs through the heat dissipation post has been seted up to the lateral wall of

heat dissipation post

31, 32, at least a set of the louvre includes transversely runs through along the not equidirectional first louvre 301 and the second louvre 302 of heat dissipation post, the centre of first louvre 301 and second louvre 302 is crossed and is linked together. In this embodiment, the first heat dissipation hole 301 and the second heat dissipation hole 302 intersect at the center of the heat dissipation posts 31 and 32.

Referring to fig. 3, in the present embodiment, the heat dissipation pillar 31 has a set of heat dissipation holes. The heat dissipation posts 33 are formed in the fan installation area 102 near the edge, and have only one heat dissipation hole toward the center of the fan installation area 102.

Referring to FIG. 4, the heat-dissipating stud 32 has multiple sets of heat-dissipating holes and is disposed at intervals along the longitudinal direction of the heat-dissipating stud 32. In this embodiment, in the plurality of heat dissipation holes 32, the first heat dissipation holes 301 have the same penetrating direction, and the second heat dissipation holes 302 have the same penetrating direction. Of course, in the two sets of heat dissipation holes of the heat dissipation post 32, the directions of the first heat dissipation holes 301 may be different, and the directions of the second heat dissipation holes 302 may be different, at this time, the two first heat dissipation holes 301 and the two second heat dissipation holes 302 in the two sets of heat dissipation holes respectively form four heat dissipation directions with different included angles. Wherein, the top of the heat dissipation column 32 is flat and straight.

The penetrating directions of the first heat dissipation hole and the second heat dissipation hole are right angles.

In this embodiment, the shaft of the

heat dissipation studs

31, 32, 33 is cylindrical or prismatic. Of course, the

heat radiation columns

31, 32, and 33 may be other columnar bodies, and are not limited to a columnar shape or a prism shape.

Referring to fig. 1 and 2, an antenna plate 13 is further mounted on the first housing 11, an annular shielding wall is convexly disposed on the first housing 11 to define an antenna chamber, and the antenna plate 13 is reversely buckled and fixed in the antenna chamber and is electrically connected to the circuit board in the control main body 20 through a wire hole in the bottom wall of the antenna chamber.

Referring to fig. 11 and 13, a second embodiment of the present invention is different from the first embodiment, in this embodiment, a heat conducting pipe 60 is embedded in an outer side 111 of the first housing 11, the heat conducting pipe 60 is a hollow pipe and is located between the heat dissipating fins 31', 32', a capillary porous structure (not shown) adsorbing a heat conducting medium is provided in the hollow pipe 50, and the heat conducting pipe 60 includes an evaporation portion located in the fan mounting area and a condensation portion located in the heat conducting pipe away from the fan mounting area.

Wherein, radiating fins 31', 32' are fin 31', 32' respectively, heat pipe 60 is along its horizontal direction for a direction of orientation crooked and make it middle evaporation portion is the arc, first casing 11 is outer to have a plurality ofly heat pipe 60, and a plurality of heat pipe 60 level is laid on first casing 11 and around the fan installing zone evenly sets up. In this embodiment, there are two heat pipes 60.

Referring to fig. 13, the cross-section of the heat pipe 60 is T-shaped, and the T-shaped lateral portion of the heat pipe 60 is exposed to the outside 111 of the first casing 11 for heat exchange with the outside, so that the heat pipe can be mounted conveniently, and the heat pipe can conduct heat from the inside of the casing to the surface of the first casing as soon as possible, and then dissipate the heat through the wind between the heat dissipation columns.

In this embodiment, the fan installation area is located at the middle position of the first housing 11, the condensation portion of the heat conduction pipe 60 is located at the two ends of the heat conduction pipe 60, and the evaporation portion of the heat conduction pipe 60 is located in the middle of the heat conduction pipe 60 and corresponds to the fan installation area, so that heat can be diffused from the middle to the two sides as soon as possible.

In the present invention, when the domain controller host 100 operates, the fan assembly 41 starts to operate, so that air is sucked into the air suction area from the air inlet 421 of the fan cover 42 in a rotating manner, enters between the heat dissipation posts 31 from the air suction area, and enters into the gaps and the heat dissipation holes between the heat dissipation posts 31 from different directions along with the rotation of the fan assembly 41, heat is transferred from the circuit board of the control main body 20 to the first casing 11, and is transferred to the outer side 111 of the first casing 11 by the first casing 11, and the air flows around the outer side 111 of the first casing 11 from the air suction area at the center until the air is blown out from the edge of the first casing 11 (arrow of the air flow direction key fig. 6), so that the heat is transferred out.

The domain controller host 100 of the present invention is a domain controller host 100 for an intelligent cabin, wherein two opposite sides of a heat dissipation housing of the domain controller host 100 are respectively and outwardly integrally formed with a plurality of mounting seats 15, and the heights of the mounting seats 15 on the two opposite sides are different.

The horizontal direction referred to in the present invention is a direction in which the first casing 11 extends from the center to the periphery, the vertical direction is a relative direction with reference to the first casing, the upper direction is a direction in which the first casing extends outward, and the lower direction is a direction in which the first casing extends inward.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.

Claims

1. The utility model provides a high efficiency casing heat abstractor, includes the first casing of heat conduction and protruding locate a plurality of intervals on the first casing outside set up the fin, install in fan unit and fan lid on the first casing, fan unit mount in the fan installing zone in the first casing outside for rotatory the inhaling of outside air is extremely the induced draft district of fan installing zone below, the fan lid in on the fan unit, its characterized in that: the fan lid outwards extends along the horizontal direction and forms the wind channel apron, be provided with a plurality ofly under the wind channel apron heat dissipation fin, just the wind channel apron with form between the heat dissipation fin with the heat dissipation channel of induced draft district intercommunication, the wind channel apron on seted up a plurality of induced drafts the hole and with the wind-guiding passageway of induced draft hole intercommunication, the wind-guiding passageway is from being close the one end of fan installing zone is to keeping away from the other end downward sloping or the crooked extension of fan installing zone, with it is leading-in to induced draft the outside air in hole the heat dissipation channel.

2. The high efficiency case heat sink of claim 1, wherein: the fan cover extends to the periphery to form an air duct cover plate, and at least one air duct cover plate extends to the edge of the first shell.

3. The high efficiency case heat sink of claim 1, wherein: the air duct cover plate is provided with air guide sheets at positions corresponding to the air suction holes, the air guide sheets comprise first ends close to the fan installation area and second ends far away from the fan installation area, the first ends are connected with or integrally formed on first edges, close to the fan installation area, of the air suction holes, and the air guide sheets are gradually bent downwards or inclined from the first ends to the second ends so as to form the air guide channels on the upper surfaces of the air guide sheets.

4. The high efficiency case heat sink of claim 3, wherein: the lower surface of the air guide sheet forms an arc-shaped air guide surface for guiding air outwards.

5. The high efficiency case heat sink of claim 4, wherein: the air guide piece also comprises two opposite side edges connected with the first end and the second end, the two side edges extend upwards to form an air guide side plate connected with the air duct cover plate, and two sides of the air guide channel are closed.

6. The high efficiency case heat sink of claim 5, wherein: the air suction hole is also provided with a third edge which is opposite to the first edge and is far away from the fan installation area, and a second edge which is oppositely arranged and is connected with the first edge and the second edge, and the upper edge of the air guide side plate is respectively connected with the second edge or integrally formed.

7. The high efficiency case heat sink of claim 6, wherein: the air suction hole is rectangular or trapezoidal, and when the air suction hole is trapezoidal, the third edge is shorter than the first edge.

8. A high efficiency case heat sink in accordance with claim 3 wherein: the air suction hole is also provided with a third edge which is opposite to the first edge and far away from the fan installation area, the second end of the air guide sheet and the third edge of the air suction hole have a distance in the projection of the horizontal direction, and an outlet of the air guide channel is formed between the second end of the air guide sheet and the lower part of the third edge.

9. The high efficiency case heat sink of claim 3, wherein: the upper surface of the air guide sheet is arc-shaped, the curvature of the upper surface of the air guide sheet is reduced from the first end to the second end, and the second end of the air guide sheet horizontally extends towards the direction far away from the air suction area.

10. The high efficiency case heat sink of claim 1, wherein: the fan assembly comprises a fan mounting area, a fan cover plate, a fan assembly, a fan mounting area, a plurality of heat dissipation fins, a plurality of air inlets and a plurality of air inlets, wherein the plurality of heat dissipation fins are arranged on the outer side surface of the first shell in the fan mounting area, a distance is formed between the fan cover and the heat dissipation fins to form an air suction area, a distance is formed between the air channel cover plate and the heat dissipation fins to form an air supplement area, the fan cover is provided with the plurality of air inlets to enable air to be sucked to the air suction area through the air inlets in a rotating mode through the fan assembly, and the height of the heat dissipation fins of the fan mounting area is lower than that of the heat dissipation fins at the air channel cover plate.

11. The high efficiency case heat sink of claim 1, wherein: the fan assembly is hung on the fan cover through a rubber piece, the fan cover is fixed on the first shell, a distance is reserved between the fan assembly and the first shell, and the fan assembly is not in contact with the first shell.

12. The high efficiency case heat sink of claim 11, wherein: the fan cover is provided with a plurality of installation parts for installing the fan assembly, the lower half part of the rubber part is connected with the fan assembly in a clamping manner, and the upper half part of the rubber part is connected with the installation parts in a clamping manner, so that the fan assembly is hung on the fan cover.

13. The high efficiency case heat sink of claim 12, wherein: the rubber piece is columnar, the installation part is an installation hole formed in the fan cover, and a first clamping head which stretches out of the column body of the rubber piece and is clamped with the installation hole is arranged at the top end of the rubber piece.

14. The high efficiency case heat sink of claim 12, wherein: the rubber part is columnar, and the bottom end of the rubber part is provided with a second clamping head which is convexly arranged on a column body of the rubber part and clamped with the fan assembly; the fan assembly comprises a fan installation frame and a fan installed on the fan installation frame, a clamping hole matched with the rubber piece column body is formed in the inner side wall of the frame body of the fan installation frame, an inlet with the width smaller than the aperture of the clamping hole is formed in the inner side wall of the fan installation frame, and the second clamping head is clamped with the bottom of the fan installation frame.

15. The high efficiency case heat sink of claim 1, wherein: the heat dissipation fin is a solid heat dissipation column, at least one group of heat dissipation holes transversely penetrating through the heat dissipation column are formed in the position, away from the top, of the side wall of the heat dissipation column, and the at least one group of heat dissipation holes comprise a first heat dissipation hole and a second heat dissipation hole which transversely penetrate through the heat dissipation column along different directions, and the middles of the first heat dissipation hole and the second heat dissipation hole are intersected and communicated together; when the heat dissipation holes are provided with a plurality of groups, the plurality of groups of heat dissipation holes are arranged along the longitudinal interval of the heat dissipation column, and in the plurality of groups of heat dissipation holes, the penetrating directions of the first heat dissipation holes are the same or different, and the penetrating directions of the second heat dissipation holes are the same or different.

16. The high efficiency case heat sink of claim 15, wherein: the penetrating directions of the first heat dissipation hole and the second heat dissipation hole are right angles.

17. The high efficiency housing heat sink of claim 1, wherein: the heat conduction pipe is embedded in the outer side face of the first shell and is a hollow pipe, a capillary porous structure adsorbing heat conduction media is arranged in the hollow pipe, and the heat conduction pipe comprises an evaporation part located in the fan installation area and a condensation part located far away from the fan installation area.

18. The high efficiency housing heat sink of claim 17, wherein: the cross section of the heat conduction pipe is T-shaped, and the T-shaped transverse part of the heat conduction pipe is exposed outside the first shell so as to exchange heat with the outside.

19. The high efficiency housing heat sink of claim 17, wherein: the fan installation region is located at the middle position of the first shell, the condensation part of the heat conduction pipe is located at two ends of the heat conduction pipe, and the evaporation part of the heat conduction pipe is located in the middle of the heat conduction pipe and corresponds to the fan installation region.

20. The high efficiency housing heat sink of claim 1, wherein: the lowest edge of the air guide channel is higher than the height of the air suction area.

21. A domain controller host, characterized by: the multimedia body is arranged in the heat dissipation shell, the heat dissipation shell comprises a first shell, the heat dissipation fan comprises a fan component and a fan cover, and the heat dissipation fan is arranged on the heat dissipation shell to form the high-efficiency shell heat dissipation device according to any one of claims 1-20.